1. A. favourB. harborC. fullD. flour

The underlined letter "a" in "favour" has a different sound from the others. It's pronounced as /eɪ/, while in the other words, it's pronounced as /æ/.

Therefore, the correct answer is A. favour.

1. A. machineB. foreverC. supplyD. military

The stress in "machine" is on the first syllable, while in the other words, it's on the second syllable.

Therefore, the correct answer is A. machine.

1. This story has been passed down by word of mouth.

2. This offer is far less satisfactory than the previous one.

3. Nowadays, Tan Chau artisans can produce silk of multiple colours so that they can meet customers' demands.

4. I'm very attracted to the idea of working from home.

5. You must know how to distinguish between what is good for you and what is not.

6. As a small boy he was used to being left alone in the house for an hour or two.

7. One of the areas of multimedia that is growing quickly is sound.

8. Vietnamese traditional sculpture is done with a simple hammer and chisel.

9. You can see the urban sprawl of the suburbs in Ho Chi Minh City with many apartment buildings, supermarkets, shopping centres, and schools.

10. My uncle was able to see his doctor even though it was Sunday.

11. She asked me if the seat was occupied or not.

12. Ann was raised very dependent on her parents, and she was worried that she wouldn't live on her own afterwards.

13. Susan needs someone to show her how to manage her anxiety and depression.

14. Since regular physical activity may be associated with lower health care costs.

15. Neither Canada nor Mexico requires that citizens of the United States pass passports.